Rotary valve



B. F. BOWEN ROTARY VALVE June 24, 1930.

2 sheets-sheet 1 Filed Aug. 9, 1928 June 24, 1930. B. F. BOWEN 1,755,101

ROTARY VALVE Filed Aug. 9, 192B 2 Sheets-Sheet 2 /NvE/vr/z BENJAMIN F. BOWEN zy /u Patented `June 24, y l f ,i

BENJAMIN F. BOWEN, oFfnrcHi/LOND, CALIFORNIA, Assis-Non oF vONE-HALF 'ro n.1 w.v 'y f BoTTGERysor nrcr-rmonmcnmronnm f v f f ROTARY VALVE Application ma August 9, 19.23." lserial No. 298,534.

Y My invention relates to improvements vin Fig. is a bottom plan view of one of the valves hfor internal Acombustion motors valves.' l I y `V 4 wherein conical rotary valves operate in 'Y'Referring to the drawings, the numeralpkl conjunction with means actuated by themoris used to designate the motor bloekof an y, d

6 tor for alternately connectingA and disconinternal .combustion motor'ha'vingthe usualVv 55 necting'each cylinder of the motor --with its .cylinder 2 with pistons 3 lslidably mounted intake and exhaust ports `respectively and` therein,' said cylinders being connected in in synchronism "with the cycles ofthe pistons the usual manner by moans of connecting mounted'within the'cylinders'ofsaid motor. rods 4: to the'crank shaft 6. The block 1"is` n 10 lThe primary objectof kthe present invenalso provided with the usual 'intake andex- "60 tionis to provide a new and improved valve` ll'tuSt POTtS I and E, `1"SPCtVely, and "be-. for internal combustion motors;v tween thovupper end oit' each Cylinder and" i Another Object of the present invention its respective intakerand exhaust ports I and s p i'sto providea new and improvedconical 13,resp'ectively2 I have provided a conical rotary valve which will alternately `connect volvo Seat 7 and within eachovalve-seat '-7 .65

and disconnect a cylinderof an internal com- 1S rotatably mounted a .conical valve '8 have bustion motorwith itsintake kand exhaust ing' a Curved Channel 9 therein a'lrangedfil' portsin synchronism wthfthe' cycles of the one position of the valve to Connect the-ad; piston'of the motor; l p' l)acent cylinder with 4rits intake port7 in av v' L A- further Objdt of the present invention second position tol disconnect 'said cylinder 70 is'. to provide anew yand vimproved conical from ltheintake andfconnect it totheexrotary valve 'provided with means for nor-r llUSt port2 and 'in a third." position todisf malvly .holding said'lvalve vonto its. seat Connect said cylinder fromk both ports@ as whereby rotation' of said valye-willcontinudurlng thecompression and firing or power' `allyfA grind anew seat andl thereby insure Stoke 0f tllenlUlSOIl 3, and aSKClLSClOSelfH perfect sealingaof the cylinder during the these SQVGI'tlPOSltlOIISiIl Fg- ZO tllezdwcompression andlpower strokes; lngs. n" Y Y n "fAV still furtherobject is to provide a ro- In OI'lGI' ,t0 110111131157,Tettiltl19-00lll'0tl tating valvemste'm looselyV connected longi- Valt/@ 8111 C105? COltclCt With its COII'CtlSeat tndinally to thepvalve yto prevent unseating 7 I lfLVQ PIOVIClGdOI eflCll Valve 8o Sult- 80 of said val-vel p able spring 1l resting upon the top of each accomplish these land other objects by Valve ,8 andfheld in position andin .tension K means ofthe lpreferred'form of the device by a Sulmblefivalveap 125 WhChYCaP alSO' e disclosednthe drawings forming a part. Closes the upper end `of the valvelseat .7L

' ofthe present applicationjwherein like char,T The lower end of the [springs 1l rest `upon 85 i ilarparts throughoutthe speciiication and by the'y numeral ,s p zo t n drawings, and in which y i They lower end ofk eachy valve 8isprovided Fig. 1l 's a broken transverse sectional Wtll a IGCQSS 1610f,lroglllfansliapeinto viewofan internal combustion motor, dis- WhClr-iSlongitudinally'and,slidablyfmountclosing my improved valve applied thereto; ed theupper end of a valve stem 1701i' alcor- Fig, Zig a sectional View taken on 1in@ responding shape tofit into the irregular 2 2 of Fig. 1 inthe direction". indicated; l recessu 16l on the lower endof the-valve 8, Fig,y 3 is a broken detailed view of the the purpose of which is to prevent unseating 95 y valve operating -mechanis1n5 l l ofthe said valve'8. f f

(Fig. 4 is a broken detailedfview, partly 1 The lower end ofeach valve stem -17 is in section, disclosing themanner in which provided with a suitable gear 18l meshing the valveY stem is loosely connected longiwith similar gears 19 mountedupon aoollracters of reference are vused todesignate sim- Slltbl .'dllti-tICtOH` members designated tudinally to the valve; and d d ter-shaft 2l vin turn rotatably mounted 'withp100 y Y1e Y l crates the crankshaft 6 in theusual manner',

`suitable bearings, lefefibl'y within "the crank case 23'of the motor.

One end ofthe counter-shaft 21is provided with a spur" gear 24 meshing with a second spur gear 26,'the saidgears being of the proper ratio to actuate thevalves 8 in ,Y synchronism with the cycles ofthe vpistons Y 3 Withnlthepcylinders 2. l Y

In'operation, the vertical reciprocation of-'tlie pistonsV withinvthe-cylinders 20p- "which crankl shaft 6 by means of the gear 26 rotates; the spur gear 24 of the counter Y shaft 21 and consequently the gears 19 thereon Awhich lgears 19 rotate the gears 18 on the valve-stemsil?. As the valve stems are Y' loosely connected longitudinally,v to lthe conical rotary valves 8 -within the conical t* v f .valve seats 7, lsaid valves 8 and their respeetive.channelsy therein are rotated toy cause said channel y9, to alternatev` connect andfdisconnect the cylinders 2f with their respectiveintake and exhaust ports respec. tively and also to disconnectboth intake and exhaust ports 4from their respective cylinders.

synchronismhwith the cycles Yof the pistons 3 within'thecylinders 2.V

The springs v11, cooperating with the antilfriction bearings indicated as at 14:,` tend to normally, retain the conical' rotary valves V8 within their respective conicalseats 7 'to seal the cylinders 2 fromtheir respective iny take; and`r exhaust Vports lduringthe compression and*powerstrokes.` Thetension of the springs 1lV also serves to maintain contactV 1 f of v`the conical valves 8 with theirY respective conic'alxseatsi 7 v'whereby continued rotation of ysaid valves within said 'seats will operate rto` constantly grind .said valves and seats aiiditherebypat all times 'preserve accurate contact ofsaidvalves with said seats. f

4As hereinbefore described the loose connections;V longitudinally', of the valve stems 17 withtheir'respectivevvalves Seperate to rotatev said valves V8 without unseating 'the sameffor the reasonthat 'said valves v8 are free to move longitudinally in respectA to s aid` stems ,'17 but lat the same time said valves are rotated by the engagement ofthe Airregular end of the stems 17 with the cor- Y responding irregularv recesses in the lower ends ofsaid valves 8. `llheirregular*ends and` recesses alsoserve to, prevent inaccurate replacement'orpconnection ofthe valves Vwith ytheir respective stems.

'f i tHaving thus described my inventionwhat I claimras lnew and'de'sire to secure by Let-v faq,

t sa

l.y ,The:combinationl Vwith the cylinderV block andhead-of an internal combustion engine having intake andfexhaust passages adapted to communicate witheach cylinder `ofthe engine-.and having a conical valve seatformedbetween the intake and exhaust passagefor each cylinder, ofv a conicalvalve Y the' valve seated upon itsseat gagement with' the shaft.

rotatablyseated withineach valve seatl and having a channel f arranged to alternately connect and disconnect lthe exhaust and intake passages with the lcylinder;` caps` mounted upon the block to normally close openings formed over each valve, andre: i"

movable to permit the inserting and removal of said Y valves through said openings;V

meansfmounted betweenthe caps andthe valves to normally hold'V the valves seated; valve shafts VVrotatablypmounted upon the block and having their upper ends engaging the valves to'rotate the same said valves being slidably movableaxially relativeito the shafts to compensate for wear and to permit removal of the valves from'lsaidshafts; and

Vmeans for rotating the shaftsto actuate the valves in timed relation to the. movement of `pistons mounted within-.the cylinders@ 2.V A rotary valve for internal combustion engines comprising a Y rconical valve seat:` formed between intakeand'exhaust passages adapted to communicate with,YV a cylinder of. an engine; a valve shaft mounted in axial alinement with the valve seat'and actuated `by the engine in timed relation to thefoper-l i ation of a 4piston within said cylinder; "a

conical valve seatedrwithin the valve seat'V and having channel arranged to alter- -natelyvconnect and Vdisconnect the exhaust andintake passages with thecylinderisaid `valve being movable axially through an opening labove vthe valve seat to detachably engage the endl of theA shaft Vfor `rotation therewith and ybeing slidably movableaxisages adapted to communicate with a cylinder of anv engine; a valve shaft mountedin axial aliiiement with .the valve seat and actu-y ated by tlie enginel in .timed relation-tothe operation of a piston within said cylinder; a conicalvalve seated within the valve seat and having ra channel arranged'to; alter! and intake passages with' the. cylinder, said -nately connect and disconnect lthe exhaustfk 121,5 valve being lmovable axially through" an' vopeningaloove the valve jseat to 'detachably t 'engage the end of the shaft for rotationV a therewith and being yslidably movable j ax .ially thereon to compensate for wear and to permitV removal of the valve"V independently ofthe shaft; and means' normall holdingV Y,

and in en'-k 4. A rotary valve forV internal combustion engines Y comprising ja .conical valve seat' formed between intake and exhaust passages Y adaptedy to communicate with a cylinder of an engine; ka valve shaft mounted in `.axial by the engine in timed relation to the operation lof a piston Within said cylinder; a conical valve seated within the valve seat and having a channel arranged to alternately connect anddiseonnect the exhaust vand intake passages withv the cylinder, said valve being movable .axially through an opening above the valve seat to detachably` engage the end of the shaft for rotation therewith and being slidably movable axip'ally thereon to compensate for wear and to permit removal of the` valve independently ofthe shaft; a capfniounted tonormally close the opening above the valve; and a spring compressed between said cap and the valve to normally hold said valve seated and in engagement with `the shaft.

5. A rotary valve for internal combustion engines comprising a conical valve seat formed between intake and exhaust Y pase sages communicating with Aacylinder of an engine ;I a valve shaft mounted in axial alinement with the valve seat, one endof said shaft extending into the small end of the seatymeans connecting the opposite end ofv the shaft to drivingmechanism actuated by the engines to rotate said kshaft in timed relation tothe operation of a-piston withinv l n the cylinderya conical valve member -movable axially onto the valve seat from the large end thereof through an opening f aligned with said seat,` the small end of said nature.

valve member slidably and detachably engaging the adjacent endI ofthe valve shaft i.

to permit said valve member to-be inserted and removed independently of the `vshaft, and said member having a channel'to alter? nately connect and disconnect the exhaust and intake passages with the cylinder; a cap mounted to close the opening; and -a spring compressed between the cap'and the valve to normally hold the valve seated and moving said vvalve member axially relative to the shaft to compensate for wear;

In witness whereof, I hereunto set my sig- BENJAMIN BOWEN. 

